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Given rectangle ABCD, find angle BEC.

 

 Mar 11, 2021
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Note that triangle DEC is isosceles  with angles EDC and ECD  =31°

 

So angle  DEC  =180  - 2 (31)   =  180  - 62   =  118°

 

And angle BEC  is supplemental to DEC =  180  - 118  =   62°

 

 

cool cool cool

 Mar 11, 2021

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